Question

cuso4, 5H2o sample contains 64g oxygen then the mass of cu(in g) in same sample will be given:atomic weight of cu is63​

Answer 1

Answer:

Correct option is D)

Molar mass of CuSO

4

.5H

2

O=1Cu+1S+4O+10H+5O=63.5+32.1+4×16+10×1+5×16=249.6g

Oxygen and copper will be present in 9:1 molar ratio always.

63.5g of Cu

144g of O

=

3.782g of Cu

x g of O

Hence, grams of oxygen in this sample=

63.5

144×3.782

=8.576gram

Hence, the answer is D.

Explanation:

please make me brainliest